Error when define Transparent table

Dear,

When I create a transparent table in ABAP Dictionary, after fill Short Description, Delivery and Maintenance tab, I switch to Fields tab.

When I fill the first field (e.g: name TEST), choose Data Element (e.g: S_CARR_ID) --> ABAP Dictionary recognize that: Data Type is CHAR, Length is 0, and Decimal Places is 0.

But, actually, S_CARR_ID has Data Type is CHAR, Length is 3.

So, ABAP dictionary notifies that Number of positions < minimum number (1) for data type CHAR. Then, I can't do anything except exit.

How to fix the problem